Class: IconPreviewArea

Inherits:
Qt::Widget show all
Defined in:
ext/ruby/qtruby/examples/widgets/icons/iconpreviewarea.rb

Overview

** ** Copyright © 2004-2005 Trolltech AS. All rights reserved. ** ** This file is part of the example classes of the Qt Toolkit. ** ** This file may be used under the terms of the GNU General Public ** License version 2.0 as published by the Free Software Foundation ** and appearing in the file LICENSE.GPL included in the packaging of ** self file. Please review the following information to ensure GNU ** General Public Licensing requirements will be met: ** www.trolltech.com/products/qt/opensource.html ** ** If you are unsure which license is appropriate for your use, please ** review the following information: ** www.trolltech.com/products/qt/licensing.html or contact the ** sales department at [email protected]. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. **

** Translated to QtRuby by Richard Dale

Constant Summary collapse

NumModes = 
3
NumStates = 
2

Instance Method Summary collapse

Methods inherited from Qt::Widget

#raise

Methods inherited from Qt::Base

#%, #&, #*, #**, #+, #-, #-@, #/, #<, #<<, #<=, #==, #>, #>=, #>>, #QCOMPARE, #QEXPECT_FAIL, #QFAIL, #QSKIP, #QTEST, #QVERIFY, #QVERIFY2, #QWARN, #^, ancestors, #is_a?, #methods, private_slots, #protected_methods, #public_methods, q_classinfo, q_signal, q_slot, signals, #singleton_methods, slots, #|, #~

Constructor Details

#initialize(parent = nil) ⇒ IconPreviewArea

Returns a new instance of IconPreviewArea.



31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
 
# File 'ext/ruby/qtruby/examples/widgets/icons/iconpreviewarea.rb', line 31

def initialize(parent = nil)
    super(parent)
    mainLayout = Qt::GridLayout.new
    setLayout(mainLayout)

    stateLabels = []
    stateLabels[0] = createHeaderLabel(tr("Off"))
    stateLabels[1] = createHeaderLabel(tr("On"))

    modeLabels = []
    modeLabels[0] = createHeaderLabel(tr("Normal"))
    modeLabels[1] = createHeaderLabel(tr("Active"))
    modeLabels[2] = createHeaderLabel(tr("Disabled"))

    (0...NumStates).each do |j|
        mainLayout.addWidget(stateLabels[j], j + 1, 0)
    end

    @pixmapLabels = []
    (0...NumModes).each do |i|
        mainLayout.addWidget(modeLabels[i], 0, i + 1)

        @pixmapLabels[i] = []
        (0...NumStates).each do |j|
            @pixmapLabels[i][j] = createPixmapLabel()
            mainLayout.addWidget(@pixmapLabels[i][j], j + 1, i + 1)
        end
    end

    @size = Qt::Size.new
		@icon = Qt::Icon.new
end

Instance Method Details

#createHeaderLabel(text) ⇒ Object 



76
77
78
79
80
 
# File 'ext/ruby/qtruby/examples/widgets/icons/iconpreviewarea.rb', line 76

def createHeaderLabel(text)
    label = Qt::Label.new(tr("<b>%s</b>" % text))
    label.alignment = Qt::AlignCenter.to_i
    return label
end

#createPixmapLabel ⇒ Object 



82
83
84
85
86
87
88
89
90
91
 
# File 'ext/ruby/qtruby/examples/widgets/icons/iconpreviewarea.rb', line 82

def createPixmapLabel()
    label = Qt::Label.new
    label.enabled = false
    label.alignment = Qt::AlignCenter.to_i
    label.frameShape = Qt::Frame::Box
    label.setSizePolicy(Qt::SizePolicy::Expanding, Qt::SizePolicy::Expanding)
    label.backgroundRole = Qt::Palette::Base
    label.setMinimumSize(132, 132)
    return label
end

#icon=(icon) ⇒ Object 



64
65
66
67
 
# File 'ext/ruby/qtruby/examples/widgets/icons/iconpreviewarea.rb', line 64

def icon=(icon)
    @icon = icon
    updatePixmapLabels()
end

#size=(size) ⇒ Object 



69
70
71
72
73
74
 
# File 'ext/ruby/qtruby/examples/widgets/icons/iconpreviewarea.rb', line 69

def size=(size)
    if size != @size
        @size = size
        updatePixmapLabels()
    end
end

#updatePixmapLabels ⇒ Object 



93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
 
# File 'ext/ruby/qtruby/examples/widgets/icons/iconpreviewarea.rb', line 93

def updatePixmapLabels()
    (0...NumModes).each do |i|
        if i == 0
            mode = Qt::Icon::Normal
        elsif i == 1
            mode = Qt::Icon::Active
        else
            mode = Qt::Icon::Disabled
        end

        (0...NumStates).each do |j|
            state = (j == 0) ? Qt::Icon::Off : Qt::Icon::On
            pixmap = @icon.pixmap(@size, mode, state)
            @pixmapLabels[i][j].pixmap = pixmap
            @pixmapLabels[i][j].enabled = !pixmap.nil?
        end
    end
end